CN208229246U - A kind of novel railway locomotive aerosol fire extinguishing equipment - Google Patents
A kind of novel railway locomotive aerosol fire extinguishing equipment Download PDFInfo
- Publication number
- CN208229246U CN208229246U CN201820532819.6U CN201820532819U CN208229246U CN 208229246 U CN208229246 U CN 208229246U CN 201820532819 U CN201820532819 U CN 201820532819U CN 208229246 U CN208229246 U CN 208229246U
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- CN
- China
- Prior art keywords
- lead
- cooling layer
- fire extinguishing
- inner cylinder
- extinguishing equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000443 aerosol Substances 0.000 title claims abstract description 37
- 230000003137 locomotive effect Effects 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 44
- 239000000126 substance Substances 0.000 claims abstract description 21
- 239000007858 starting material Substances 0.000 claims abstract description 7
- -1 carbonic acid aluminum Chemical compound 0.000 claims abstract description 6
- 210000002268 wool Anatomy 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000004964 aerogel Substances 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 3
- 239000005439 thermosphere Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 39
- 239000007789 gas Substances 0.000 description 8
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 229920004449 Halon® Polymers 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 239000002826 coolant Substances 0.000 description 4
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000007800 oxidant agent Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- ZRALSGWEFCBTJO-UHFFFAOYSA-N Guanidine Chemical compound NC(N)=N ZRALSGWEFCBTJO-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- CHJJGSNFBQVOTG-UHFFFAOYSA-N N-methyl-guanidine Natural products CNC(N)=N CHJJGSNFBQVOTG-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- SWSQBOPZIKWTGO-UHFFFAOYSA-N dimethylaminoamidine Natural products CN(C)C(N)=N SWSQBOPZIKWTGO-UHFFFAOYSA-N 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model relates to fire-fighting fire extinguishing equipment, specially a kind of novel railway locomotive aerosol fire extinguishing equipment, including cabinet, inner cylinder, colloidal sol floor, chemical cooling layer, physics cooling layer, it ignites pack, lead I, lead II, the cabinet is divided into cup and rear chamber, it include inner cylinder in rear chamber, it is disposed with colloidal sol floor from the bottom to top in the cylinder of inner cylinder, chemical cooling layer, physics cooling layer, the upper surface of colloidal sol floor is provided with pack of igniting, the lead I, lead II introduces pack of igniting by casing together, lead I connects external power supply, the connection igniting starter of lead II, the cup lower part is provided with multiple spouts, the interior is additionally provided with carbonic acid aluminum wool thermal insulation layer, the utility model installation form multiplicity, it is small, fire-fighting efficiency is high, structure is simple and easy to operate.
Description
Technical field
The utility model relates to fire-fighting fire extinguishing equipment, specially a kind of novel railway locomotive aerosol fire extinguishing equipment.
Background technique
There is certain toxicity since halon fire agent can seriously destroy atmospheric ozone layer and itself, in worldwide
It is interior to be disabled, thus find it is a kind of will not destroy atmospheric ozone layer and put out a fire efficiently replaced with nontoxic halon fire agent
For product or substitute technology, oneself becomes the hot spot of various countries' related science man research.As a kind of novel fire-fighting fire extinguishing means, gas
Colloidal sol fire-fighting technique because extinguishing mechanism is unique, and can plant in many occasions instead of halon fire agent so that its
Fire-fighting domain is quickly grown.
Aerosol fire-extinguishing device is a kind of advanced, efficient gas self-extinguishing equipment, it is by Chemical Inhibition, dilution
Oxygen concentration and heat absorption etc. extinguishing mechanisms collective effect come achieve the purpose that scene fire extinguishing.Fire-suppressant gas have very high insulating properties and
Without corruption candle property.Aerosol fire-extinguishing technology is because fire-fighting efficiency height, blow-off velocity are fast and environmentally protective unlike halon fire agent can be right
Ozone layer causes the various advantages such as serious destruction, occupies increasingly consequence in various fire extinguishing fields.
Patent No. CN201320223968.1, the applying date are that on 04 27th, 2013 utility models disclose a kind of hot gas
Aerosol fire extinguisher, and in particular to a kind of condensed aerosol fire extinguishing device, the condensed aerosol fire extinguishing device includes outer cylinder, interior
Cylinder；The cylinder internal upper part of the inner cylinder is provided with cooling layer, and lower part is provided with colloidal sol floor in the cylinder of the inner cylinder；The aerosol
The upper surface of layer is provided with spherical groove, which is provided with igniter pad, and the igniter pad is balloon pack；Institute
It states igniter pad to be connected with igniter, the utility model condensed aerosol fire extinguishing device can be effectively reduced because of ignition charge
The phenomenon that aerosol caused by the problem of combustion lag or burning deficiency causes lag or can not cause, to improve fire fighting and rescue
Speed, reduce economic loss.However there are still following problems for above scheme: first is that not yet explicitly coolant and thermal insulation layer is specific
Composition, second is that the device figure is big, is not suitable in such as railway locomotive small space, and mounting means is not flexible, is only suitable for
In for floor mounting type.
Utility model content
The purpose of this utility model is to provide a kind of novel railway locomotive aerosol fire extinguishing equipments, to solve above-mentioned background
The problem of being proposed in technology.The novel railway locomotive aerosol fire extinguishing equipment has small, installation form with the equipment
The characteristics of multiplicity, fire-fighting efficiency height, low cost.
To achieve the above object, the utility model provides the following technical solutions:
A kind of novel railway locomotive aerosol fire extinguishing equipment, including cabinet, inner cylinder, colloidal sol floor, chemical cooling layer, physics
Cooling layer, pack of igniting, lead I, lead II, the cabinet are divided into cup and rear chamber, include inner cylinder in rear chamber, in the cylinder of inner cylinder
It is disposed with colloidal sol floor, chemical cooling layer, physics cooling layer from the bottom to top, the upper surface of colloidal sol floor is provided with ignition charge
Packet, the lead I, lead II introduce pack of igniting by casing together, and lead I connects external power supply, the connection igniting of lead II
Starter, the cup lower part are provided with multiple spouts, and the interior is additionally provided with carbonic acid aluminum wool thermal insulation layer.
Preferably, the physics cooling layer filler is ceramic heat-storing sphere, and the ceramic heat-storing sphere is diameter 20-40mm
Hollow sphere.
Preferably, it is cold that demarcation plate II, chemical cooling layer and physics are provided between the colloidal sol floor and chemical cooling layer
But demarcation plate I is provided between layer.
Preferably, the aerogel generating agent partial size in the colloidal sol floor is at 100-200 μm.
Preferably, it may also include one inside the inner cylinder for measuring the temperature sensor of inner cylinder internal temperature, the temperature
Degree sensor is communicatively coupled to the Fire Autoalarm of locomotive by signal transducer.
Compared with prior art, the utility model has the beneficial effects that
The utility model railway locomotive aerosol fire extinguishing equipment uses compact shape with the volume and quality of alleviator, cabinet
It is divided into two Room of front and back, high-temperature aerosol weaves throngh ceramic heat-storing sphere, makes full use of the confined space, guarantees cooling distance, can be with
The narrow spaces such as railway locomotive are exclusively used in, are conveniently suspended on the suitable spandrel girder for determining height, which passes through chemical cooling layer
Saleratus coolant and physics cooling layer ceramic heat-storing sphere back-fire relief cooling after, then through spout ejection reach guard plot carry out
Fire extinguishing, prevents from causing protection zone secondary injury, and this equipment can detect fire automatically, and voluntarily starting fire extinguishing, structure letter
Single, easy to operate, securely and reliably, extinguishing property is good.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the inner cylinder the schematic diagram of the section structure of the utility model.
In figure: cabinet 1, colloidal sol floor 2, chemical cooling layer 3, physics cooling layer 4, ceramic heat-storing sphere 41, pack 5 of igniting,
Lead I 61, lead II 62, inner cylinder 7, casing 8, demarcation plate I 91, demarcation plate II 92, carbonic acid aluminum wool thermal insulation layer 10, spout 11.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2:
A kind of novel railway locomotive aerosol fire extinguishing equipment, including cabinet 1, inner cylinder 7, colloidal sol floor 2, chemical cooling layer 3,
Physics cooling layer 4, pack 5 of igniting, lead I 61, lead II 62, the cabinet 1 divide for cup and rear chamber, include interior in rear chamber
Cylinder 7 is disposed with colloidal sol floor 2, chemical cooling layer 3, physics cooling layer 4, colloidal sol floor 2 in the cylinder of inner cylinder 7 from the bottom to top
Upper surface be provided with pack 5 of igniting, the lead I 61, lead II 62 introduce pack 5 of igniting, lead I by casing 8 together
61 connection external power supplys, the connection igniting starter of lead II 62, the cup lower part is provided with multiple spouts 11, the cabinet 1
Inner surface is additionally provided with carbonic acid aluminum wool thermal insulation layer 10；4 filler of physics cooling layer is ceramic heat-storing sphere 41, and the ceramics store
Hot-bulb 41 is the hollow sphere of diameter 20-40mm；It is provided with demarcation plate II 92 between the colloidal sol floor 2 and chemical cooling layer 3, changes
It learns and is provided with demarcation plate I 91 between cooling layer 3 and physics cooling layer 4；Aerogel generating agent partial size in the colloidal sol floor 2 is equal
At 100-200 μm；It may also include one inside the inner cylinder 7 for measuring the temperature sensor of 7 internal temperature of inner cylinder, the temperature
Sensor is communicatively coupled to the Fire Autoalarm of locomotive by signal transducer.
When work, lead I 61 connects external power supply, and the connection igniting starter of lead II 62, igniting starter includes igniting
Device and fire detector for receiving and for receiving and transmitting signal, fire detector are connect with igniter, and igniter is logical
It crosses lead II 62 to connect with pack 5 of igniting, when detecting fire signal, igniting starter ignites pack 5 of igniting, to ignite
The aerogel generating agent of colloidal sol floor 2, burning release high-temperature aerosol extinguishing chemical, high-temperature aerosol extinguishing chemical are cooling by chemistry
After 41 back-fire relief of the ceramic heat-storing sphere cooling of the saleratus coolant and physics cooling layer 4 of layer 3, then is sprayed through spout 11 and reach anti-
Shield area puts out a fire.
Wherein, it is aerogel generating agent in the colloidal sol floor 2, is saleratus coolant, physics in chemical cooling layer 3
It is ceramic heat-storing sphere 41 in cooling layer 4, the demarcation plate I 91, demarcation plate II 92 are metal perforated plate.The aerosol of colloidal sol floor 2
There are many kinds of the formula composition ingredients of propellant, but its main component is oxidant, fuel agent and binder, and oxidant is main
Oxygen required when substance combustion is provided, fuel agent provides the required heat that burns in colloidal sol floor 2, and binder is then to keep gas molten
Glue extinguishing chemical product has certain intensity, is furthermore also added into some other performance adjustment agent, and effect includes control combustion
Burn rate, reduce ignition temperature, promote catalysis etc..As a preference, the oxidant choosing of the colloidal sol floor 2 in the present embodiment
With Sr (N03)2、KNO3, fuel agent, which is selected, sells sour guanidine, and binder selects glutinous rice flour, should change with long-term safe preservation is convenient to
Performance is learned to stablize, to human body and environmentally friendly, and it is abundant raw material, cheap.
In small space, most of console mode aerosol fire extinguishing equipments do not have sufficient space to meet safe distance requirement,
It cannot ensure sufficiently large safe spacing, if stacking inflammable articles in safe spacing, more risk will be caused.The utility model railway
Landing, suspension, wall hanging, several different mounting means of insertion can be used in locomotive aerosol fire extinguishing equipment, can pass through wall-mounted peace
In railway locomotive, spout 11 and device high temperature, settable certain safe distance are considered the problems of.It can be with using the equipment
Gram aerosol fire extinguishing equipment is distributed at the top of guard plot as arrangement spray head, only spout 11 is exposed in guard plot, i.e.,
Expand the influence that fire-fighting efficiency is low caused by calculating speed after having taken aerosol fire extinguishing equipment injection, and can quick extinguishing.In addition, this sets
It is standby the spaces such as ground or ground interlayer to be mounted on using floor mounting type.
This equipment uses compact shape, the volume and quality of alleviator, which is divided into two Room of front and back, and High Temperature Gas is molten
Glue weaves throngh ceramic heat-storing sphere 41, makes full use of the confined space, guarantees cooling distance, while using the sky of diameter 20-40mm
Heart ceramic heat-storing sphere 41, i.e. mitigation quality guarantee endothermic effect again；The aerogel generating agent partial size is thinner, and jet velocity is got over
Fastly, to avoid causing jet velocity excessively slow since partial size is excessive or the meticulous influence for causing excessive velocities, the gas of the utility model
Colloidal sol propellant partial size guarantees between 100-200 μm；1 lower part of cabinet is provided with guide hole at spout 11, is provided with casing 8,
External lead wire I 61, lead II 62 are sealed by casing 8 introduce together, pass through chemical cooling layer 3, physics cooling layer 4 and colloidal sol floor
2 are connected to pack 5 of igniting, and the spout 11 is in venetian blind type, and described sleeve pipe 8 is made of heat-resisting material, casing 8 with lead
It is sealed between hole, lead I 61, lead II 62 and casing 8 with high-temperature plastic, aerosol high temperature gas flow can be prevented along lead I 61, drawn
Thus channel sprays line II 62.
The temperature of the spout 11 of aerosol fire extinguishing equipment is very high, if not taking any measure, will lead at spout 11
Flame is formed, secondary injury is caused to protected area, secondly, the high buoyancy of temperature of fire extinguishing product is big, is made by guard space
Firing-fighting medium is unevenly distributed, unfavorable to putting out a fire.The control of temperature is cold by using the saleratus of chemical cooling layer 3 at spout 11
But agent 3, physics cooling layer 4 ceramic heat-storing sphere 41 as cooling object, aluminum wool thermal insulation layer 10 as 1 inner surface of cabinet it is heat-insulated
Layer, after back-fire relief cools down, the equipment in course of injection away from maximum temperature nozzle 0.5m at be 74 DEG C, in course of injection and
After injection, 1 hot face temperature of cabinet is 60 DEG C, therefore will not make one calcination in the equipment course of injection and after injection, also not
Can ignite surrounding objects.
The aerosol fire extinguishing equipment may also include the temperature sensor for measuring 7 internal temperature of inner cylinder, temperature sensor
The inside of inner cylinder 7 is set, is connect by conducting wire with signal transducer, after the temperature in inner cylinder 7 reaches assigned temperature, temperature
The temperature signal can be transferred to signal transducer by sensor, this signal is passed to automatic fire alarm control again by signal transducer
Device processed, so that crew member is able to know that the aerosol fire extinguishing equipment has been started up.The novel railway locomotive aerosol fire-extinguishing is set
It is standby to have the characteristics that installation form multiplicity, fire-fighting efficiency height, low cost, easy to maintain, it can be with extensive utilization.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of novel railway locomotive aerosol fire extinguishing equipment, including cabinet (1), inner cylinder (7), colloidal sol floor (2), chemistry are cooling
Layer (3), physics cooling layer (4), pack of igniting (5), lead I (61), lead II (62), it is characterised in that: the cabinet (1) point
For cup and rear chamber, interior rear chamber includes inner cylinder (7), is disposed with colloidal sol floor (2) in the cylinder of inner cylinder (7) from the bottom to top, changes
Cooling layer (3), physics cooling layer (4) are learned, the upper surface of colloidal sol floor (2) is provided with pack of igniting (5), the lead I (61),
Lead II (62) is introduced into pack of igniting (5) by casing (8) together, and lead I (61) connects external power supply, lead II (62) connection
Light a fire starter, the cup lower part is provided with multiple spouts (11), cabinet (1) inner surface be additionally provided with carbonic acid aluminum wool every
Thermosphere (10).
2. a kind of novel railway locomotive aerosol fire extinguishing equipment according to claim 1, it is characterised in that: the physics is cold
But layer (4) filler is ceramic heat-storing sphere (41), and the ceramic heat-storing sphere (41) is the hollow sphere of diameter 20-40mm.
3. a kind of novel railway locomotive aerosol fire extinguishing equipment according to claim 1, it is characterised in that: the aerosol
It is provided between demarcation plate II (92), chemical cooling layer (3) and physics cooling layer (4) and sets between layer (2) and chemical cooling layer (3)
It is equipped with demarcation plate I (91).
4. a kind of novel railway locomotive aerosol fire extinguishing equipment according to claim 1, it is characterised in that: the aerosol
Aerogel generating agent partial size in layer (2) is at 100-200 μm.
5. a kind of novel railway locomotive aerosol fire extinguishing equipment according to claim 1, it is characterised in that: the inner cylinder
(7) internal to may also include one for measuring the temperature sensor of inner cylinder internal temperature, which passes through sensing
Device is communicatively coupled to the Fire Autoalarm of locomotive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532819.6U CN208229246U (en) | 2018-04-16 | 2018-04-16 | A kind of novel railway locomotive aerosol fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820532819.6U CN208229246U (en) | 2018-04-16 | 2018-04-16 | A kind of novel railway locomotive aerosol fire extinguishing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208229246U true CN208229246U (en) | 2018-12-14 |
Family
ID=64583051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820532819.6U Expired - Fee Related CN208229246U (en) | 2018-04-16 | 2018-04-16 | A kind of novel railway locomotive aerosol fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208229246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675462A (en) * | 2020-01-20 | 2021-04-20 | 湖北及安盾消防科技有限公司 | Pulse type fire extinguishing device and electrical equipment |
| CN112675464A (en) * | 2020-01-20 | 2021-04-20 | 湖北及安盾消防科技有限公司 | Efficient pulse type fire extinguishing device and electrical equipment |
-
2018
- 2018-04-16 CN CN201820532819.6U patent/CN208229246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112675462A (en) * | 2020-01-20 | 2021-04-20 | 湖北及安盾消防科技有限公司 | Pulse type fire extinguishing device and electrical equipment |
| CN112675464A (en) * | 2020-01-20 | 2021-04-20 | 湖北及安盾消防科技有限公司 | Efficient pulse type fire extinguishing device and electrical equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |